Answer the question.
-If 68% of the persons in a 100-person sample say that they approve of the actions of the city council with a
Margin of error of 5%, one can conclude that the number of persons in a population of 2500 that approve of
Council policies is
A)1700.
B)probably in the interval 1575 to 1825.
C)probably in the interval 1600 to 1800.
D)250.

Question

Quizplus · Accepted Answer

The margin of error of 5% applied to the 68% approval rate in a sample suggests that in the larger population, the approval rate could reasonably be expected to be between 63% (68% - 5%) and 73% (68% + 5%). When applied to a population of 2500, this translates to an interval of 1575 (63% of 2500) to 1825 (73% of 2500) people who approve of the council policies.

Answer the Question. -If 68% of the Persons in a 100-Person Sample Say